<?php

/*
 * 解析ip地址
 * 
 */

/**
 * 解析ip地址
 * 
 * @package system
 * @subpackage mob_ip
 * @category system
 *  
 * @author chenhl <chenhl@etpass.com>
 * @static
 */
class Handler_ip {
    

    /**
     * 解析IP地址
     * 
     * @static
     * @param str $ip ip地址
     * @return str | array
     */
    public static function convertip($ip) {

        $return = '';

        if (preg_match("/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/", $ip)) {

            $iparray = explode('.', $ip);

            if ($iparray[0] == 10 || $iparray[0] == 127 || ($iparray[0] == 192 && $iparray[1] == 168) || ($iparray[0] == 172 && ($iparray[1] >= 16 && $iparray[1] <= 31))) {
                //$return = 'LAN';
            } elseif ($iparray[0] > 255 || $iparray[1] > 255 || $iparray[2] > 255 || $iparray[3] > 255) {
                //$return = 'Invalid IP Address';
            } else {
                $ip_int = ip2long($ip);
                $db = DB_mysqli::getInstance();
                
                $sql = 'select * from wry_ip where ip_start <='.$ip_int.' and ip_end >= '.$ip_int .' limit 1';
                $return = $db->getData_ASSOCS($sql);
                
                /*
                $tinyipfile = ROOT_PATH . './data/tinyipdata.dat';
                $fullipfile = ROOT_PATH . './data/wry.dat';
                //if (0) {
                if (@file_exists($tinyipfile)) {
                    $return = self::convertip_tiny($ip, $tinyipfile);
                } elseif (@file_exists($fullipfile)) {
                    $return = self::convertip_full($ip, $fullipfile);
                }
                */
            }
        }

        return $return;
    }
    
    
    /**
     * 查找手机号所属地信息
     * @param type $mobile
     * @return string | array 
     */
    public static function convertmob($mobile) {
        
        if(!Handler_validate::checkPhone($mobile)){
            return '';
        }
        
        $mob_id = substr($mobile, 0,7);
        $db = DB_mysqli::getInstance();
        
        $sql = 'select * from mob_location where mob_id = '.$mob_id.' limit 1';
        $row = $db->getData_ASSOCS($sql);        
        
        return $row;
        
    }

    
    
    /**
     * 
     * 
     * @access private
     * @deprecated
     */
    private function convertip_tiny($ip, $ipdatafile) {

        static $fp = NULL, $offset = array(), $index = NULL;

        $ipdot = explode('.', $ip);
        $ip = pack('N', ip2long($ip));

        $ipdot[0] = (int) $ipdot[0];
        $ipdot[1] = (int) $ipdot[1];

        if ($fp === NULL && $fp = @fopen($ipdatafile, 'rb')) {
            $offset = unpack('Nlen', fread($fp, 4));
            $index = fread($fp, $offset['len'] - 4);
        } elseif ($fp == FALSE) {
            return 'Invalid IP data file';
        }

        $length = $offset['len'] - 1028;
        $start = unpack('Vlen', $index[$ipdot[0] * 4] . $index[$ipdot[0] * 4 + 1] . $index[$ipdot[0] * 4 + 2] . $index[$ipdot[0] * 4 + 3]);

        for ($start = $start['len'] * 8 + 1024; $start < $length; $start += 8) {

            if ($index{$start} . $index{$start + 1} . $index{$start + 2} . $index{$start + 3} >= $ip) {
                $index_offset = unpack('Vlen', $index{$start + 4} . $index{$start + 5} . $index{$start + 6} . "\x0");
                $index_length = unpack('Clen', $index{$start + 7});
                break;
            }
        }

        fseek($fp, $offset['len'] + $index_offset['len'] - 1024);
        if ($index_length['len']) {
            return fread($fp, $index_length['len']);
        } else {
            return 'Unknown';
        }
    }

    /**
     * 
     * @access private
     * @deprecated
     */
    private function convertip_full($ip, $ipdatafile) {

        if (!$fd = @fopen($ipdatafile, 'rb')) {
            return '- Invalid IP data file';
        }

        $ip = explode('.', $ip);
        $ipNum = $ip[0] * 16777216 + $ip[1] * 65536 + $ip[2] * 256 + $ip[3];

        if (!($DataBegin = fread($fd, 4)) || !($DataEnd = fread($fd, 4)))
            return;
        @$ipbegin = implode('', unpack('L', $DataBegin));
        if ($ipbegin < 0)
            $ipbegin += pow(2, 32);
        @$ipend = implode('', unpack('L', $DataEnd));
        if ($ipend < 0)
            $ipend += pow(2, 32);
        $ipAllNum = ($ipend - $ipbegin) / 7 + 1;

        $BeginNum = $ip2num = $ip1num = 0;
        $ipAddr1 = $ipAddr2 = '';
        $EndNum = $ipAllNum;

        while ($ip1num > $ipNum || $ip2num < $ipNum) {
            $Middle = intval(($EndNum + $BeginNum) / 2);

            fseek($fd, $ipbegin + 7 * $Middle);
            $ipData1 = fread($fd, 4);
            if (strlen($ipData1) < 4) {
                fclose($fd);
                return '- System Error';
            }
            $ip1num = implode('', unpack('L', $ipData1));
            if ($ip1num < 0)
                $ip1num += pow(2, 32);

            if ($ip1num > $ipNum) {
                $EndNum = $Middle;
                continue;
            }

            $DataSeek = fread($fd, 3);
            if (strlen($DataSeek) < 3) {
                fclose($fd);
                return '- System Error';
            }
            $DataSeek = implode('', unpack('L', $DataSeek . chr(0)));
            fseek($fd, $DataSeek);
            $ipData2 = fread($fd, 4);
            if (strlen($ipData2) < 4) {
                fclose($fd);
                return '- System Error';
            }
            $ip2num = implode('', unpack('L', $ipData2));
            if ($ip2num < 0)
                $ip2num += pow(2, 32);

            if ($ip2num < $ipNum) {
                if ($Middle == $BeginNum) {
                    fclose($fd);
                    return '- Unknown';
                }
                $BeginNum = $Middle;
            }
        }

        $ipFlag = fread($fd, 1);
        if ($ipFlag == chr(1)) {
            $ipSeek = fread($fd, 3);
            if (strlen($ipSeek) < 3) {
                fclose($fd);
                return '- System Error';
            }
            $ipSeek = implode('', unpack('L', $ipSeek . chr(0)));
            fseek($fd, $ipSeek);
            $ipFlag = fread($fd, 1);
        }

        if ($ipFlag == chr(2)) {
            $AddrSeek = fread($fd, 3);
            if (strlen($AddrSeek) < 3) {
                fclose($fd);
                return '- System Error';
            }
            $ipFlag = fread($fd, 1);
            if ($ipFlag == chr(2)) {
                $AddrSeek2 = fread($fd, 3);
                if (strlen($AddrSeek2) < 3) {
                    fclose($fd);
                    return '- System Error';
                }
                $AddrSeek2 = implode('', unpack('L', $AddrSeek2 . chr(0)));
                fseek($fd, $AddrSeek2);
            } else {
                fseek($fd, -1, SEEK_CUR);
            }

            while (($char = fread($fd, 1)) != chr(0))
                $ipAddr2 .= $char;

            $AddrSeek = implode('', unpack('L', $AddrSeek . chr(0)));
            fseek($fd, $AddrSeek);

            while (($char = fread($fd, 1)) != chr(0))
                $ipAddr1 .= $char;
        } else {
            fseek($fd, -1, SEEK_CUR);
            while (($char = fread($fd, 1)) != chr(0))
                $ipAddr1 .= $char;

            $ipFlag = fread($fd, 1);
            if ($ipFlag == chr(2)) {
                $AddrSeek2 = fread($fd, 3);
                if (strlen($AddrSeek2) < 3) {
                    fclose($fd);
                    return '- System Error';
                }
                $AddrSeek2 = implode('', unpack('L', $AddrSeek2 . chr(0)));
                fseek($fd, $AddrSeek2);
            } else {
                fseek($fd, -1, SEEK_CUR);
            }
            while (($char = fread($fd, 1)) != chr(0))
                $ipAddr2 .= $char;
        }
        fclose($fd);

        if (preg_match('/http/i', $ipAddr2)) {
            $ipAddr2 = '';
        }
        $ipaddr = "$ipAddr1 $ipAddr2";
        $ipaddr = preg_replace('/CZ88\.NET/is', '', $ipaddr);
        $ipaddr = preg_replace('/^\s*/is', '', $ipaddr);
        $ipaddr = preg_replace('/\s*$/is', '', $ipaddr);
        if (preg_match('/http/i', $ipaddr) || $ipaddr == '') {
            $ipaddr = '- Unknown';
        }

        return '- ' . $ipaddr;
    }

 
    
    

}

?>


